Bug 11735 - Use new DataTables include in calendar template

Bug 10649 introduced a new include file for adding DataTables-related
JavaScript assets. This patch adds use of this include file to the
calendar template and corrects some table sorting configuration errors.

To test you should have multiple calendar entries in various categories
of holiday: Unique holidays, repeating yearly holidays, repeating weekly
holidays, and exceptions. Sorting of date columns should work regardless
of your dateformat system preference.

Signed-off-by: merlissia <manuelimel@gmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Note: Day of week is not correctly sorted: Sundays, Mondays, Thursdays.
But it is not a regression. It is caused by the ugly way to display
weekdays (document.write).

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Bug 11757: remove dependency on POE

The last use of the POE family of Perl modules went away with
the removal of zebraqueue_daemon.pl per bug 9001.  Consequently,
this patch removes POE as a dependency.

To test:

[1] Verify that "git grep POE" and "git grep libpoe" report
    nothing.
[2] Verify that koha_perl_deps.pl -a does not report POE
    as a dependency.
[3] (extra credit) verify that Debian packages can be built
    that do not list libpoe-perl as a dependency.

This patch also updates some distro-specific installation
instructions and scripts, but makes no representations about
whether those instructions currently work.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Merge branch 'master' into sip-strip-barcode-leading-10